3-5 discs that you feel comfortable throwing and that you think will give you every shot you throw.Either LED lights, Glow Sticks(small), or Glow discs(You will need a UV light for these).Duct Tape (other tapes work but Duct is the way to go)

That's it. Show up to league at least 30 minutes early and ask someone how the best way to attach the lights to your discs. Most people are cool and will help you out.